package com.cet.lxf.oop.test06;

import java.util.Optional;

/**
 * @program: algorithm
 * @description:
 * @author: 陈恩涛
 * @create: 2021-07-22 17:16
 **/
public class Main01 {
    public static void main(String[] args) {
        Optional<String> empty = Optional.empty();
        System.out.println(empty.isPresent());
    }
}
